text: /* dzasum.f -- translated by f2c (version 20061008).
     You must link the resulting object file with libf2c:
  	on Microsoft Windows system, link with libf2c.lib;
  	on Linux or Unix systems, link with .../path/to/libf2c.a -lm
  	or, if you install libf2c.a in a standard place, with -lf2c -lm
  	-- in that order, at the end of the command line, as in
  		cc *.o -lf2c -lm
  	Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
  
  		http://www.netlib.org/f2c/libf2c.zip
  */
  
  #include "f2c.h"
  #include "blaswrap.h"
  
  doublereal dzasum_(integer *n, doublecomplex *zx, integer *incx)
  {
      /* System generated locals */
      integer i__1;
      doublereal ret_val;
  
      /* Local variables */
      integer i__, ix;
      doublereal stemp;
      extern doublereal dcabs1_(doublecomplex *);
  
  /*     .. Scalar Arguments .. */
  /*     .. */
  /*     .. Array Arguments .. */
  /*     .. */
  
  /*  Purpose */
  /*  ======= */
  
  /*     takes the sum of the absolute values. */
  /*     jack dongarra, 3/11/78. */
  /*     modified 3/93 to return if incx .le. 0. */
  /*     modified 12/3/93, array(1) declarations changed to array(*) */
  
  
  /*     .. Local Scalars .. */
  /*     .. */
  /*     .. External Functions .. */
  /*     .. */
      /* Parameter adjustments */
      --zx;
  
      /* Function Body */
      ret_val = 0.;
      stemp = 0.;
      if (*n <= 0 || *incx <= 0) {
  	return ret_val;
      }
      if (*incx == 1) {
  	goto L20;
      }
  
  /*        code for increment not equal to 1 */
  
      ix = 1;
      i__1 = *n;
      for (i__ = 1; i__ <= i__1; ++i__) {
  	stemp += dcabs1_(&zx[ix]);
  	ix += *incx;
  /* L10: */
      }
      ret_val = stemp;
      return ret_val;
  
  /*        code for increment equal to 1 */
  
  L20:
      i__1 = *n;
      for (i__ = 1; i__ <= i__1; ++i__) {
  	stemp += dcabs1_(&zx[i__]);
  /* L30: */
      }
      ret_val = stemp;
      return ret_val;
  } /* dzasum_ */
  